Blue Sea Systems

Marine power, done right

Blue Sea Systems

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Dependable electrical for the water

Build a cleaner, safer onboard power system with marine-grade switches, protection, and distribution components that are made to work together.

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Blue Sea 2011 PowerPost Mini High Amperage Cable Connector - 1/4" Stud [2011] (Open Box)
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861 products

861 products

  • Blue Sea 3126 SMS Enclosure Large Cable Gland PG29 - Blue Sea 3126 SMS Enclosure Large Cable Gland PG29 -
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  • Blue Sea 1741200 Mini OLED Temperature Monitor - Blue [1741200] Blue Sea 1741200 Mini OLED Temperature Monitor - Blue [1741200]
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  • Blue Sea 1733200 Mini OLED Voltmeter - Blue [1733200] Blue Sea 1733200 Mini OLED Voltmeter - Blue [1733200]
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  • Blue Sea 1732200 Mini OLED Ammeter - Blue [1732200] Blue Sea 1732200 Mini OLED Ammeter - Blue [1732200]
    Blue Sea 1732200 Mini OLED Ammeter - Blue [1732200]
    Blue Sea 1732200 Mini OLED Ammeter - Blue [1732200]
    Regular price
    $75.79
    Regular price
    $102.99
    Sale price
    $75.79
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  • Blue Sea 1739200 Mini OLED Tank Meter - Blue [1739200] Blue Sea 1739200 Mini OLED Tank Meter - Blue [1739200]
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  • Blue Sea 1739 Mini OLED Tank Meter - Yellow [1739] Blue Sea 1739 Mini OLED Tank Meter - Yellow [1739]
    Blue Sea 1739 Mini OLED Tank Meter - Yellow [1739]
    Blue Sea 1739 Mini OLED Tank Meter - Yellow [1739]
    Regular price
    $49.79
    Regular price
    $61.99
    Sale price
    $49.79
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  • Blue Sea 5056 ST-Blade Water Resistant Fuse Block w/Cover [5056] Blue Sea 5056 ST-Blade Water Resistant Fuse Block w/Cover [5056]
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  • Blue Sea 2356 Water Resistant BusBar - 100 Amp w/Cover [2356] Blue Sea 2356 Water Resistant BusBar - 100 Amp w/Cover [2356]
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  • Blue Sea 7068 ATO/ATC-Style Low Profile Circuit Breaker - 2-Pack - 30 Amp [7068] Blue Sea 7068 ATO/ATC-Style Low Profile Circuit Breaker - 2-Pack - 30 Amp [7068]
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  • Blue Sea 7067 ATO/ATC-Style Low Profile Circuit Breaker - 2-Pack - 25 Amp [7067] Blue Sea 7067 ATO/ATC-Style Low Profile Circuit Breaker - 2-Pack - 25 Amp [7067]
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  • Blue Sea 7066 ATO/ATC-Style Low Profile Circuit Breaker - 2-Pack - 20 Amp [7066] Blue Sea 7066 ATO/ATC-Style Low Profile Circuit Breaker - 2-Pack - 20 Amp [7066]
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  • Blue Sea 7065 ATO/ATC-Style Low Profile Circuit Breaker - 2-Pack - 15 Amp [7065] Blue Sea 7065 ATO/ATC-Style Low Profile Circuit Breaker - 2-Pack - 15 Amp [7065]
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About Blue Sea Systems

Blue Sea Systems builds marine-grade AC and DC electrical products designed to make boating safer and more reliable. Based in Bellingham, Washington, the brand is known for practical engineering that helps boaters and builders create clean, serviceable electrical systems that hold up in harsh conditions.

Their catalog covers the core building blocks of onboard power, including battery switches, automatic charging relays, fuse blocks, bus bars, circuit breakers, meters, and power distribution panels. Whether you are rigging a small skiff, upgrading a cruising sailboat, or wiring a specialty vehicle, Blue Sea components are made to work together as a complete system.

At Lotz Outdoors we stock Blue Sea Systems because dependable electrical is not optional on the water. If you are chasing a tidy install, easy troubleshooting, and confidence when the weather turns, this is the hardware that helps you get there.

Warranty

Satisfaction guarantee and product-specific warranty coverage

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Blue Sea Systems Customer Service

800-222-7617

For product-specific support, warranty claims, and technical questions, contact the brand directly.